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If I set some tag with exiftool e.g.

exiftool UserComment="test" video.mp4

I can then remove it with

exiftool UserComment= video.mp4

However, exiftool sets an additional tag ExifToolVersion which I cannot delete with

exiftool -ExifToolVersion= video.mp4

because

Warning: Sorry, ExifToolVersion is not writable

How can I remove all traces of exiftool from the file? I need to keep other meta data tags untouched.

xaxa
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1 Answers1

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ExifToolVersion is not stored in the file. This is only information returned by ExifTool. Use the -G1 option to see the group name for each tag. Tags with a group name of "ExifTool" are generated internally. Other "ExifTool" tags are Error and Warning. For a complete list, see the Extra Tags documentation

PhilHarvey
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  • You are right. But if you write a *.csv file with -g1 or -G1, the above information will be included like the FILE or SYSTEM informations. Is it possible to write only the included metadata to a *.csv? – PeterCo Oct 07 '16 at 11:56
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    @PeterCo (better late than never): Add these options to your command to extract only tags existing in the file: --system:all --exiftool:all -e – PhilHarvey Oct 18 '17 at 12:32